An object is moving around a circle of radius 1.5 meters at a constant velocity of 7 meters per second.The frequency of the motion,in revolutions per second,is - Clay6.com, a Free resource for your JEE, AIPMT and Board Exam preparation

An object is moving around a circle of radius 1.5 meters at a constant velocity of 7 meters per second.The frequency of the motion,in revolutions per second,is

Answer : The velocity is given by $v=\large\frac{2\pi R}{T}$,where T is the period,but the frequency f is just the reciprocal of the period.Thus,$v=2\pi Rf$

We substitute the known numbers to obtain f=0.74rev/s